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Sophia Bush Gushes Over Lady Gaga... the ‘Coolest Human Being’

“Chicago P.D.’s” Sophia Bush joined “Extra’s” AJ Calloway at our H&M Studios in Times Square to chat about helping her “Chicago Fire” buddy Taylor Kinney and fiancée Lady Gaga celebrate their engagement in the windy city, and dished on her new friendship with the pop star.

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